Correlation of Structural, Morphological, Magnetic, and CV Features in CoFe₂O₄ and NiFe₂O₄ Thin Films

Author(s)	Yuvraj Lingayat, Santosh More, Bhagwat Shelke, Dr. Chandrashekhar Kale
Country	India
Abstract	This work compares the structural, morphological, magnetic and electrochemical behavior of CoFe₂O₄ and NiFe₂O₄ thin films prepared under identical spray pyrolysis conditions. X-ray diffraction confirms the formation of the spinel phase in both systems, with CoFe₂O₄ showing sharper and more intense reflections, indicating relatively higher crystallinity. AFM imaging reveals that CoFe₂O₄ develops a rougher surface, while NiFe₂O₄ exhibits a smoother topography with narrower height distributions. VSM measurements show that CoFe₂O₄ attains higher magnetization throughout the applied field range than NiFe₂O₄. Cyclic voltammograms recorded at different scan rates display increasing current response for both films, and CoFe₂O₄ consistently delivers higher current densities. These graphical trends demonstrate clear differences in microstructure, magnetic strength and redox activity between the two ferrite systems and highlight how the choice of divalent cation governs their functional performance
Keywords	thin films, Spinel ferrites. Spray pyrolysis, Magnetic properties, Electrochemical behavior
Field	Physics
Published In	Volume 7, Issue 6, November-December 2025
Published On	2025-12-01
DOI	https://doi.org/10.36948/ijfmr.2025.v07i06.62290
Short DOI	https://doi.org/hbdsjc

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